remove unused code

app/src/main/java/awais/instagrabber/adapters/MultiSelectListAdapter.java

@@ -1,104 +0,0 @@
-package awais.instagrabber.adapters;
-
-import androidx.annotation.NonNull;
-import androidx.recyclerview.widget.DiffUtil;
-import androidx.recyclerview.widget.ListAdapter;
-import androidx.recyclerview.widget.RecyclerView;
-
-import java.util.ArrayList;
-import java.util.List;
-
-public abstract class MultiSelectListAdapter<T extends MultiSelectListAdapter.Selectable, VH extends RecyclerView.ViewHolder> extends
-        ListAdapter<T, VH> {
-
-    private boolean isSelecting;
-    private OnItemClickListener<T> internalOnItemClickListener;
-    private OnItemLongClickListener<T> internalOnLongItemClickListener;
-
-    private final List<T> selectedItems = new ArrayList<>();
-
-    protected MultiSelectListAdapter(@NonNull final DiffUtil.ItemCallback<T> diffCallback,
-                                     final OnItemClickListener<T> clickListener,
-                                     final OnItemLongClickListener<T> longClickListener) {
-        super(diffCallback);
-        internalOnItemClickListener = (item, position) -> {
-            if (isSelecting) {
-                toggleSelection(item, position);
-            }
-            if (clickListener == null) {
-                return;
-            }
-            clickListener.onItemClick(item, position);
-        };
-        internalOnLongItemClickListener = (item, position) -> {
-            if (!isSelecting) {
-                isSelecting = true;
-            }
-            toggleSelection(item, position);
-            if (longClickListener == null) {
-                return true;
-            }
-            return longClickListener.onItemLongClick(item, position);
-        };
-    }
-
-    public OnItemClickListener<T> getInternalOnItemClickListener() {
-        return internalOnItemClickListener;
-    }
-
-    public OnItemLongClickListener<T> getInternalOnLongItemClickListener() {
-        return internalOnLongItemClickListener;
-    }
-
-    private void toggleSelection(final T item, final int position) {
-        if (item == null) {
-            return;
-        }
-        if (selectedItems.size() >= 100) {
-            // Toast.makeText(mainActivity, R.string.downloader_too_many, Toast.LENGTH_SHORT);
-            return;
-        }
-        if (item.isSelected()) {
-            item.setSelected(false);
-            selectedItems.remove(item);
-        } else {
-            item.setSelected(true);
-            selectedItems.add(item);
-        }
-        if (selectedItems.size() == 0) {
-            isSelecting = false;
-        }
-        notifyItemChanged(position);
-    }
-
-    public boolean isSelecting() {
-        return isSelecting;
-    }
-
-    public List<T> getSelectedModels() {
-        return selectedItems;
-    }
-
-    public void clearSelection() {
-        for (final T item : selectedItems) {
-            item.setSelected(false);
-        }
-        selectedItems.clear();
-        isSelecting = false;
-        notifyDataSetChanged();
-    }
-
-    public interface Selectable {
-        boolean isSelected();
-
-        void setSelected(boolean selected);
-    }
-
-    public interface OnItemClickListener<T> {
-        void onItemClick(T item, int position);
-    }
-
-    public interface OnItemLongClickListener<T> {
-        boolean onItemLongClick(T item, int position);
-    }
-}